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Q. When ice melts, its
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Q. To produce the Low temperature which of the following principle is used. –
Q. How much is one barrel of oil approximately equal to?
Q. Which of the following one of the following is not a 'green house gas' -
Q. The green colour seen in firework displays is due to the chloride salt of:
Q. The orbital speed of a satellite revolve very near to earth surface is –
Q. The commercial name for calcium hydride is
Q. Transformer is a device to convert
Q. Sea water is saltier than rain water as
Q. Consider the following natural phenomena 1. Terrestrial heating 2. Reflection of light 3. Refr...
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